771311120212 has 12 divisors (see below), whose sum is σ = 1375262280756. Its totient is φ = 378379040000.

The previous prime is 771311120207. The next prime is 771311120219. The reversal of 771311120212 is 212021113177.

It can be written as a sum of positive squares in 2 ways, for example, as 622132872516 + 149178247696 = 788754^2 + 386236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771311120219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819129789 + ... + 1819130212.

It is an arithmetic number, because the mean of its divisors is an integer number (114605190063).

Almost surely, 2^771311120212 is an apocalyptic number.

It is an amenable number.

771311120212 is a deficient number, since it is larger than the sum of its proper divisors (603951160544).

771311120212 is a wasteful number, since it uses less digits than its factorization.

771311120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638260058 (or 3638260056 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 28.

Adding to 771311120212 its reverse (212021113177), we get a palindrome (983332233389).

The spelling of 771311120212 in words is "seven hundred seventy-one billion, three hundred eleven million, one hundred twenty thousand, two hundred twelve".